Philadelphia Union vs. New York Red Bulls - More Markets

Platform comparison

Market context

Philadelphia Union face the New York Red Bulls in MLS on 22 July at 7:30 pm ET, and the market’s 100% YES pricing implies the “More markets” contract is already treated as certain to resolve affirmatively. That is an unusually hard line for a secondary market basket, so on Polymarket the quoted probability can look absolute even when the underlying event is still exposed to settlement-definition risk; on Kalshi, the equivalent would usually be seen through a \$1 contract price, while Betfair and Smarkets would present the same view as much shorter decimal odds rather than a binary probability. Differences in fees and access matter here: exchange-style books typically clip returns through commission, while prediction platforms more often price the spread into the contract itself, and KYC reach varies by venue.

Recent head-to-head results justify why traders may have been willing to price the fixture aggressively. Philadelphia beat New York 2-0 in July 2025, with first-half goals from Indiana Vassilev and Bruno Damiani, and the Union’s prior run against the Red Bulls was strong enough that a later 1-0 defeat at New York ended a franchise-record streak of 16 consecutive results against them.[1][2][4] That kind of history tends to support markets tied to straightforward match-state outcomes, but it does not automatically validate a 100% crowd-implied probability unless the contract wording is narrow and the settlement rules are unambiguous.

The main catalysts to watch are line-up announcements, late injury or rotation news, and any schedule changes close to kick-off, because “More markets” contracts can turn on ancillary conditions rather than the final score alone. The public box score for the 22 July 2026 fixture showed Philadelphia as the market favourite and listed the combined goals line at 3.5, which is the sort of external pricing traders often compare against the platform’s binary probability when judging whether a YES is over- or under-owned.[6] On venue choice, venue-specific availability and regulatory access can also affect who can arb the gap between Polymarket, Kalshi, Betfair and Smarkets, especially when one book expresses the event in implied probability and another in odds after commission.[6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Philadelphia Union vs. New York Red Bulls - More Markets specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.